Acer Acer –LCD-P205H
6
Power On on on active ≤ 48W Blue
off on blanked < 2W Yellow
on off blanked < 2W Yellow
Power Saving
off off blanked < 2W Yellow
Power Off -- -- -- < 1W Off
3.1.4 Backlight Power Supply
Items Specification
Panel
SEC LTM200KT01 panel
LGD LM200WD1-TLB1 panel
Lamp 4 CCFL
Input Voltage DC 23~28 V
Input current 1.1A (Typ.), 1.2A (Max.)
On/Off switch level
5.5V≧Von≧ 2.0 V (on)
-0.3v ≤ Voff ≤ 0.8 V (off)
Brightness PWM Duty (ACM Off)
30%~100%
Brightness PWM Duty (ACM On)
10%~100%
CCFL operating Voltage 800Vrms (Typ.),
2.5 mA (min.)
7.0mA (Typ.)
CCFL Current
8.0 mA (Max.)
CCFL startup voltage
≧1700 Vrms (0˚C)
Operating frequency 40~60KHz
Protect delay time > 1 second
Efficiency ≥70% (Using dummy load)
Note: Other panels please refer to the reference panel specs.
3.2 Brightness output
The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise
noted.
Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1600 x 900
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall
≥
240
cd/m
2
(as panel spec)
3.3 White balance
The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )
Mode
Chromaticity Coordinate
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